What are the opportunities to join IAF after Completing my P.G Degree??

At present, i'm pursuing Bachelors of Engineering and i'm in final year. Please tell me what are the job oppurtunities in Indian Airforce after doing my Post graduation? are there any age limits for pg holders? i know abt a single exam for IAF i.e AFCAT, for graduates. I wanted to know the exams i can prepare myself for?